August f



(No Model.)

A. F. ZIMMERLING.

LAMP.

Patented Dec. 9, 1890.

Unirnn STATES PATENT OFFICE.

AUGUS'I F. ZIMMERLING, OF JACKSON, MICHIGAN.

LAMP.

SPECIFICATION forming part of Letters Patent No. 442,299, dated December 9, 1890.

Application filed April 19, 1890. Serial No. 348,700. (No model.)

To all whom, it may concern:

Be it known that I, AUGUST 11. ZIMMERLING, of Jackson, in the county of Jackson and State of Michigan, have invented new and useful Improvements in Lamps; and I do hereby declare the following to be a full, clear, and exact description of said invention, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in lamps, and chiefly to the means provided for securing complete and perfect combustion therein.

Figure 1 is a central vertical section of the principal parts of the lamp, the base being shown in elevation. Fig. 2 is a top plan view of the same device, parts being broken away to show the interior construction.

The base A is constructed hollow and is p rovided with two sets of apertures B B and C. These apertures are conveniently arranged in rows about the base and are provided for the admission of air into the base, from which it passes upwardlyin passages therefor through the lamp to the combustion-chan1ber and flame above. A loose band C is placed about the base A opposite the apertures O, which band is provided with apertures normally registering with the apertures in the base,but which band may be moved about the base, so as to partially or entirely close the apertures 0, whereby the amount of air to be admitted to the base may be regulated. This base A is preferably constructed of sheet metal, and extending upwardly therefrom and integral therewith is the hollow cylindrical tube 1). A hollow cylindrical wick-tube E, considerably less in diameter than the tube D, is located within the tube D throughout its entire length and extends a little above the tube D at the top. The wick-tube E is closed at the bottom and is made liquid-tight. An annular oilreservoir F is secured, liquid-tight. to and about the tube D, and a small duct F leads from near the bottom of the reservoir F into the wick-tube E, whereby the wick-tube is supplied with oil. A considerable space exists about the wicletube, between that tube and the outer tube D, which space is partitioned into two longitudinal air passages G and G by the cylindrical tube II, which extends from opposite the bottom of the wick-tube to or nearly opposite its top. An interior cylindrical tube I, somewhat smaller than the wick-tube, extends from a little below the bottom of the wick-tube to a little above its top and has its extremities flared outwardly both at the bottom and the top, the flaring bottom being intended to take the air more freely into the tube and the top flaring part I being adapted to serve as one side of the burnercone and as a deflector for the flame above the combustion-chamber, as will be hereinafter more fully described. The space within the wick-tube is divided by the tube I into an outer air-passage K and an inner air-passage K. The tubes outside of the wick-tube are secured together by the stay-pieces or braces L L, and the tube I within the wicktube is secured thereto by the stay-pieces L L. A still smaller tube M, extending from a little above the tube I downwardly, is located within the tube I and is secured thereto by stay-pieces N N. The tube M forms an interior air-passage M within the passage K through a portion of its length, the tube M extending downwardly into the tube I only a part of its entire length.

A sleeve-like collar 0 is secured to the upper extremity of the tube H, which collar has an upwardly-projecting and inwardly-curved top part- 0, which forms the outer part of the burner-cone opposite to the flaring part I of the tube 1, but terminating a little below the top of that tube and at a distance therefrom, providing an annular cone-opening for the passage of the flame therethrongh. This construction of the top of the tube I and of the part 0' together form a partially-closed combustion-chamberPabove the top of the wicktube E. The lower part of the collar 0 is turned outwardly, forming a flange 0, which extends laterally over the top of the air-passage G and beyond the outer surface of the tube D at a distance above the top of the tube. A sleeve D about the top of the tube D turns by a screw-thread thereon and is adapted to be turned up on the tube D against the flange 0", thereby closing the top of the airpassage G, or it may be adjusted on the tubeD so as to partly close the air-passage, if desired; A circular tubular chimney-supporter R, having its lower end turned inwardly, so as to fit loosely against the sleeve D, is suspended from the flange O by the connecting-pieces R. The inner diameter of the chimney-supporterRis greater than the greatest diameter of the flange 0, whereby the air-passage Gr is continued above the tube D, being carried outwardly by the flange O" and again upwardly by the chimney-supporter R, and is turned inwardly by the inwardly and upwardly inclined deflector R, secured at its outer edge to the chimneysupporter, and extending inwardly and upwardly therefrom at a little distance above the flange 0'. By this construction the current of air that passes from the base upwardly through the passage Gis turned inwardly by the deflector R toward the flame that-issues from the cone above the combustion-chamber P. The air that passes upwardly through the passages G and K is discharged into the combustion-chamberP on the outside and inside, respectively, of the wick-tube E, and is by the form of the cone 0 and the flaring part I of the tube I turned into or against the flame in the combustion-chamber. The air that passes upwardly through the air-passages G and K is, by the construction of the parts outside of the combustion chamber, thrown against the flame above the. combustion-chamber.

For turning the air that passes through the tube I against the flame, the small tube M is provided at its top with a laterally-proj ecting ring-deflector S; also, for turning the air which passes through the tube M against the flame at a still higher point, a small disk T is supported a little above the deflector by a stem T, inserted in a stay-piece N, fixed in the tube M.

A chimney U (the lower portion only of which is shown) is supported on the deflector R in the chimney-deflector R. A wick-supporting sleeve V is fitted in the wick-tube E and is adapted to travel vertically therein, it being provided on the outside with a rack meshing with a pinion IV 011 a rotatable rod IV, provided with a milled head and having its bearings in a horizontal tube Y, piercing andsupported in the tubes D and II. By this construction of a lamp all perforations in the lamp below and about the burner-cone and combustion-chamber are dispensed with, as

the air for feeding the combustion is all supplied through the lamp from the base. This obviates the inconvenience and even danger which arises from the closing of such perforations as exist in ordinary lamps by their becoming clogged with cinder or other foreign matter.

\Vhat I claim as new, and desire to secure by Letters Patent, is-

1. In a lamp, the combination, with a circular wick-tube, of two tubes I and II, one

from the collar, substantially within and the other about the wick-tube at a distance therefrom, both of which tubes are substantially continuous downwardly, respectively, from the inner and outer walls of the burner-cone, forming continuous and independent air-passages upwardly through the lamp at the inside of and about the wick-tube, terminating in the combustion-chamber in the cone above the wick-tube, and an additional outside tube D at a distance from and about the tube H, forming an independent continuous air-passage through the lamp vertically, arranged to discharge air upwardly therefrom entirely on the outside of the burner-cone, but against the flame, substantially as described.

2. In a lamp having a circular Wick-tube and an outer and an inner air-passage adjoin ing the Wick-tube discharging air into the combustion chamber within the burner-cone, the combination of an outer and an inner airpassage arranged to discharge air therefrom outside of and above the burner-cone, with an inner and an outerdeflectorarranged to turn the currents of air discharged from the inner and outer tubes, respectively, against the flame above the cone, substantially as described.

3. In a lamp havinga wick-tube and burnercoue above the wick-tube and means for supplying the combustion-ehamber Within the cone with air, thecombination of an oblique deflector, as R, located in a surroundingairpassage and adapted to turn the outer current of upwardly-passing air inwardly against the flame above the burner-cone, with a central deflector, as S, adapted to turn the inner current of upwardly-passing air against the flame above the cone, substantially as described.

4. In a lamp having air-passages outside of and about the wick-tube, which passages are separated from each other by a tube atadistance from and about the wick-tube, a collar supported on the partition-tube, the top part of which collar projects upwardly and is turned inwardly, forming the outer part of the bu rner-cone, and the bottom of which collar is turned outwardly horizontally, and a chimney-supporter thereabout provided with an inwardly-extending deflector suspended as described.

5. In a lamp, the combination, with an outer air-passage arranged for the passage of air upwardly through the lamp and for discharging the air therefrom against the flame outside of the burner-cone, of an adjustable sleeve, as D, turning on a tube of the lamp and arranged to close or partially close this outer air-passage, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

AUGUST F. ZIMMERLING.

Vitnesses:

C. T. BENEDICT, ANNA FAUST. 

